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自1989年第一拖拉机厂的东方红-75型履带拖拉机改型为东方红-802型履带拖拉机、东方红-60T 型推土机改型为东方红-70T 型推土机以来,原4125型柴油机配置的Ⅱ号喷油泵也改用 ZHB 型喷油泵。为了满足用户了解 ZHB 型喷油泵调整规范的要求,现介绍如下(见表)。表中所列额定油量、校正油量、起动油量和空转油量均指操纵手柄在最大油门位置。而怠速油量是指操纵手柄在最小油门位置。额定油量的各缸不均匀度不大干3%,怠速及空转油量的各缸不均匀度不大于25%。
Since 1989, the first tractor factory Dongfanghong -75 crawler tractor modified Dongfanghong -802 crawler tractor, Dongfanghong -60T bulldozer modified to Dongfanghong -70T-type bulldozer, the original 4125 diesel engine configuration Ⅱ No. injection pump switch to ZHB type fuel pump. In order to meet the user to understand ZHB-type fuel pump adjustment specifications, are presented below (see table). Table listed in the rated fuel volume, the amount of correction, starting oil and idle oil refers to the control handle at the maximum throttle position. The amount of idle oil refers to the joystick in the minimum throttle position. The rated fuel cylinder unevenness is not dry 3%, idle and idle oil cylinder unevenness of not more than 25%.